Pyramex Safety hard hats are made from high-density polyethlene materials with a low profile design. Safety hard hat has a rain trough on the sides and back of helmet to channel moisture away. Universal accessory slots for cap mounted ear muffs or accessories. Hard cap styles features a 6-point nylon snap lock suspension. Meets ANSI Z89.1-2009, Type 1, Class C,G, and E for industrial head Protection. Snap lock suspension features a "tuck away" adjustment for all day, hassle-free wear. 6 Point, ratchet action deluxe adjustable headgear.